Grade 8 Science final revision

....................... a diagram that shows the amount of energy that flows from one feeding level to another:

• Food chain

• Energy pyramid

• Food web

• Energy web

The food web is made up of:

• Many overlapping food chains

• One food chain

• Many separate food chains

• Only two food chains

Letter A in the following diagram should always be:

• Cat

• Producer

• Dog

• Sunlight

What is the amount of energy for the third consumer?

• 1000 kcal

• 50 kcal

• 1 kcal

• 0 kcal

....................... is an example of herbivores.

• Lion

• Shark

• Cow

• Dog

Consumers that eat both animals and plants are called ........................

• Herbivores

• Carnivores

• Omnivores

• All of the above

The form of precipitation in a water cycle is (are):

• Hail

• Rain

• Snow

• All the above

The letter “a” belongs to:

• Condensation

• Evaporation

• Precipitation

• Freezing

What is the main source of oxygen in the oxygen cycle?

• Elephants

• Sea

• Plants and Trees

• None of the above

Some ....................... are responsible for nitrogen fixation.

• Human

• Bacteria

• Yeast

• Animals